I admire lovely women with flat tummies and athletically fit abdominal muscles ("abs" for short).
Supermodels frequently have nice abs, as shown for Doutzen Kroes below (and she's had two kids).
|These are Doutzen's abs, too|
But supermodel abs, even Doutzen's abs, can't compare to world-class Olympic gold medalist gymnast abs.
See this article for confirmation of that.
Ab fab! Simone and her golden girls hit the beach in Rio ...
I cropped a picture I found from this photo op to show Aly Raisman, looking particularly impressive.
Fit. For real.